89661043958 has 8 divisors (see below), whose sum is σ = 135681757128. Its totient is φ = 44433791584.

The previous prime is 89661043921. The next prime is 89661043961. The reversal of 89661043958 is 85934016698.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 89661043897 and 89661043906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198364916 + ... + 198365367.

It is an arithmetic number, because the mean of its divisors is an integer number (16960219641).

Almost surely, 2^89661043958 is an apocalyptic number.

89661043958 is a deficient number, since it is larger than the sum of its proper divisors (46020713170).

89661043958 is a wasteful number, since it uses less digits than its factorization.

89661043958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396730398.

The product of its (nonzero) digits is 11197440, while the sum is 59.

The spelling of 89661043958 in words is "eighty-nine billion, six hundred sixty-one million, forty-three thousand, nine hundred fifty-eight".